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Recent Posts
Categories
- Design (2)
- Elasticsearch (3)
- Golang (5)
- hadoop (2)
- Java (10)
- linux (1)
- Performance (1)
- Scala (2)
- Security (3)
- Spark (2)
- Spring (2)
- Spring Batch (1)
- Spring Boot (1)
- sqoop (1)
- UI (1)
- unix (1)
- Vim (2)
Tags
annotation
apache hive 3
cdp
cloudera
commands
CORS
cron
dataframe
design pattern
DNS
elastic
elasticsearch
go
golang
hadoop
hdfs
hive
http
ip
java
jms
JpaRepository
junit
mockito
mq
mysql
nginx
oracle
proxy
proxy_pass
queue
rdbms
rdd
resolution
reverseproxy
scala
scheduled
spark
spring
springboot
spring boot
sql
sqoop
string
vim
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Elasticsearch : What, How and Why?
At its core, you can think of Elasticsearch as a server that can process JSON requests and give you back JSON data in near real-time.
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5 simple examples to understand Elasticsearch aggregation
Elasticsearch aggregation give us the ability to ask questions to our data. The ability to group and find out statistics (such as sum, average, min, max) on our data by. read more…
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Be careful while querying inner objects in elasticsearch
In elasticsearch we can store closely related entities within a single document. For example, we can store a blog post and all of its comments together, by passing an array. read more…
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